Multiple improvements

[lefterisgar]

Hello and congratulations for releasing v2 of this awesome app! I've made a few improvements to it. Let me know if you want me to change something.

Here is a list of what this PR fixes:

• sinus/cosinus (French) -> sine/cosine (English)
• Remove an unused string and reorganize existing ones
• Updated greek translation
• Only store the result to history if it's a number (and not NaN or +/- Infinity), just like other calculator apps do
• Display an error when dividing by 0 (the previous approach was to output +/- Infinity, which is only correct if we are talking about limits)
• Display an error on ln0 for the same reason as above
• Minor code refactoring and simplification

[Darkempire78]

It's not still perfect, sometimes there are some crashes

[lefterisgar]

Thanks for taking the time to perfect this PR! Are there still crashes after your last commit?

[Darkempire78]

Thanks for taking the time to perfect this PR! Are there still crashes after your last commit?

I just forgot withContext(Dispatchers.Main) {}

[lefterisgar]

Maybe "syntax error" is more explanatory than "format error"?

[Darkempire78]

Maybe "syntax error" is more explanatory than "format error"?

You are right, I change that

[Darkempire78]

Could you update the greek translation please ? After that I will merge it

[lefterisgar]

Could you update the greek translation please ? After that I will merge it

Yes, of course!

[lefterisgar]

I see this line: if (x.isNaN()) format_error = true is used multiple times. Can this only be on top and apply to all cases?

[Darkempire78]

I see this line: if (x.isNaN()) format_error = true is used multiple times. Can this only be on top and apply to all cases?

Yes I fixed that

[Darkempire78]

Thank you so much for your pull request :)

[lefterisgar]

Thanks for the awesome project! :)